02/03-7
PURCHASE I SERVICE ORDER
FOR
MONROE COUNTY
Purchase Service Order No. 02/03-7
To: URS
Re: PSA Agreement, Dated 1-1-02
Resolution No,
Project Name: Key West International- Fuel Tank Site Assessment
Description of Services:
(See attached Scope of Work)
Multiple of Direct Salaries
Lump Sum X
Reimbursable Expense
Fee this Service Order NTE $ 45.000.00
Days to Complete 400
Payment for Services shall be in their entirety as per PSO.
Prepared by:
Recommended by:
C?s\i
~---::r-
.... .
Milford A. Reisert
IO-~-O~ j2
25M:::!:
. r',L
", :;')~ -<
n' r-
0".
:;::0 ::~
:::; . C)
:<n!:":
. ;-I}>
."
)> ,."
Date:
1 0/2/02
Date:
Approved by:
Mayor/Chairman
Date:
Date:
.I / / Z-4? / -z.-
I I
/'...)
= "
C"..:>
r-.;) r-
Cj ,.."
rr1 CJ
("")
I "
0'\ C>
;;:J
" ::u
3: rr1
W C")
C>
N ::u
0
SCOPE OF WORK
SITE ASSESSMENT
ISLAND CITY FLYING SERVICE
ABOVEGROUND FUEL STORAGE TANK FARM
KEY WEST INTERNATIONAL AIRPORT
KEY WEST, FLORIDA
DEP FACILITY NO. 44/8624743
SEPTEMBER 24, 2002
1.0 INTRODUCTION
URS Corporation (URS) is pleased to present this proposal to perform site assessment activities
at the Island City Flying Service fuel farm at the Key West International Airport in Key West,
Florida. This proposal is submitted in response to a request from Mr. Peter J. Horton, Director of
Key West International Airport. This proposal includes the project background and objectives,
scope of work, schedule and estimated fee.
2.0 BACKGROUND
The Island City Service Fuel tank farm consists of three above ground storage tanks (ASTs)
placed in secondary containment. On or around April 24, 2001, an accidental discharge of Jet A
fuel occurred in which approximately 50 to 150 gallons of fuel was released from the
containment area. A Discharge Report Form dated April 25, 2001 was submitted to the Florida
Department of Environmental Protection (FDEP). McKenzie Tank Lines performed the initial
remedial action to removed petroleum-impacted soils from April 25 to April 27, 2001. Soils
were removed from a 3 to 7 foot wide area around the entire perimeter of the containment system
to a depth of approximately one-foot. In addition, soils were removed from an area of 20 feet by
30 feet to a depth of approximately one-foot along the western side of the containment area,
Approximately 88 tons of petroleum impacted soils were removed from the site for disposal.
Geovac Environmental Services (Geovac) collected four soil samples on April 27, 2001. The
samples were collected in the vicinity of each comer of the containment system. The analytical
results of the soil samples indicated the presence of elevated levels of several volatile organic
compounds (VOCs), semi-volatile organic compounds (SVOCs) and total petroleum
hydrocarbons (TPH) at concentrations that exceeded their respective Soil Cleanup Target Levels
(SCTLs). A groundwater sample was collected from a temporary monitor well installed in the
excavated area on the eastern side of the containment system, The analytical results indicted the
presence of elevated levels of several VOCs, SVOCs and TPH at concentrations that exceeded
their respective Groundwater Cleanup Target Levels (GCTLs).
Fuel Tank Farm Site Assessment
Key West International Airport
September 24, 2002
Page 1
During the excavation of soils in April 2001, a 4-inch diameter drainage pipe was encountered
west of the containment system. This drainage piping was reportedly associated with an
abandoned oil/water separator/drain. Portions of the 4-inch piping were removed, In May 2001,
Geovac removed the remainder of the 4-inch piping, which likely connected to a former drain at
the fuel dispensers, Soil samples were collected along the 4-inch piping during removal and
screened in the field using an Organic Vapor Analyzer (OVA). The OVA results indicated that
excessively contaminated soils were present in the northwest portion of the fenced tank farm,
near the power pole holding the emergency shut off switch,
The FDEP reviewed the report documenting the results of the source removal at the Island City
Flying Service fuel farm following the discharge of fuel on April 24, 2001. The FDEP issued a
letter dated August 22, 2002 to Mr. Peter Horton, Director of Key West International Airport
requiring a Site Assessment to be performed in accordance with Chapter 62-770, Florida
Administrative Code (F AC).
2.0 OBJECTIVE
The objective of the Site Assessment (SA) is to evaluate the vertical and horizontal extent of
petroleum impacted soils and groundwater in the vicinity of the Island City Flying Service fuel
farm. An additional objective will be to gather the additional information that will be required to
be submitted to the FDEP in a Site Assessment Report (SAR) in accordance with Chapter
62- 770, F AC, This information will include aquifer characteristics (groundwater flow velocity
and direction), the location of potable wells in the vicinity of the site and a description of the
local and regional geologic and hydrogeologic conditions that might impact the movement of
groundwater contamination.
3.0 SCOPE OF WORK
The extent of soil and groundwater contamination at the fuel farm is not known. URS proposes
to evaluate the site conditions in a phased approach. This will allow us to evaluate data from the
first phase and make cost effective project decisions for subsequent phase(s), URS proposed to
approach the site assessment by performing phases of fieldwork that are briefly described below.
Phase I Mobilization
. Project Management/Health & Safety Plan/Utility Clearance
\\c I ntO I \envwater\ W ASTE\PROPOSAL\2002\KeyWestIntAirpSARpro,doc
Fuel Tank Farm Site Assessment
Key West International Airport
September 24, 2002
Page 2
. Installation of up to six (6) shallow water table wells;
. Collect soil sample of investigative derived waste for pre-bum analysis:
. Perform soil borings and collect soil samples for laboratory analysis: and
. Perform area well survey.
Phase II Mobilization
. Collect groundwater samples from the six (6) shallow wells for laboratory analysis;
. Survey top of well casing elevations;
. Obtain water level data and evaluate groundwater flow direction and hydraulic gradient; and
. Perform variable head slug tests to evaluate shallow aquifer permeability.
Phase III Mobilization
. Based upon laboratory results of groundwater samples and groundwater flow direction,
locate and install up to three (3) additional shallow wells and one deep well; and
. Perform additional soil borings if necessary.
Phase IV Mobilization
. Collect groundwater samples from the wells installed during Phase III for laboratory
analysis;
. Survey the top of casing elevations of new wells; and
. Obtain additional water level data for evaluation of tidal influences,
The scope of work, schedule and cost estimate is based upon the above-mentioned phases.
During Phase I, portions of the fence surrounding the tank farm will be temporarily removed to
allow the drill rig access to soil boring and monitor well locations. For security reasons, the
fence will be replaced following the Phase I field activities, This proposal assumes temporary
fence removal will not be required a second time (i.e., the additional wells and/or soil borings
planned for Phase III will not be located within the fenced tank farm area), A budget for
meetings is not included in this cost proposal. At the request of Key West International Airport,
URS will attend meetings on a time and expense basis.
3.1 PROJECT MANAGEMENT AND UTILITY CLEARANCE
URS will assemble the appropriate project team to conduct the assessment activities. This task
includes project management that consists of project planning, scheduling, initiation and
coordination with drilling and laboratory subcontractors. In addition, as required by the State of
\\c I ntO I \envwater\ W ASTE\PROPOSAL\2002\KeyWestlntAirpSARpro,doc
Fuel Tank Farm Site Assessment
Key West International Airport
September 24, 2002
Page 3
Florida, URS will contact the local agency responsible for underground utility clearance, which
requires a 72-hour notice prior to intrusive work. A site-specific health and safety plan will be
developed prior to conducting site assessment activities, This task also includes agency
notification of our planned schedule for field activities,
3.2 SOIL SAMPLING AND ANALYSIS
At the initiation of the Phase I mobilization, soil samples will be collected at the subject site in
accordance with the DEP Standard Operation Procedures (SOP) 001/01. Up to 40 soil borings
will be conducted in the vicinity of the fuel farm for a estimated total of 80 feet of borings. The
actual footage of borings will be determined in the field. Soil samples will be collected using
standard split spoon samplers from land surface to the water table, which is approximately two
feet below land surface. The soil samples will be screened in the field using an OVA equipped
with a Flame Ionization Detector (FID), An activated charcoal filter will be used to measure
filtered and unfiltered organic vapors. The sampling equipment will be decontaminated between
each sampling location to mitigate the potential for cross contamination.
A minimum of three soil samples will be submitted for laboratory analysis. The soils that will be
selected for laboratory analysis will be the three grab samples with high, medium and low OVA
field screening results. The samples will be submitted to a state-approved laboratory following
chain-of-custody protocols. The soil samples will be analyzed for the Gasoline and Kerosene
Analytical Group parameters listed in Chapter 62-770, F AC, Table B. This list of parameters
includes the analysis for volatile organic compounds by EP A Method 8021, polynuclear
aromatic hydrocarbons by EP A Method 8310 and TPH by the FL-PRO method. For Quality
Assurance/Quality Control (QA/QC), one equipment blank will be collected and analyzed for the
above-referenced parameters.
3.3 PERMANENT MONITOR WELL INSTALLATION, SAMPLING & ANALYSIS
During the Phase I mobilization, URS proposes to install six (6) shallow permanent monitor
wells at the site to be used for groundwater monitoring and for aquifer characterization. The
wells will be installed to a depth of approximately 13 feet below land surface. URS will contract
with a licensed well driller to install the wells using the hollow stem auger method. The flight
augers will be decontaminated between each well location.
Each well will be constructed with 2-inch diameter, schedule 40 PVC pipe with ten feet of
O,010-inch slotted well screen, A 20/30-grade silica sand filter will be placed around the well
screen and a fine sand seal will be placed above the sand filter, The remaining annular space
will be backfilled with neat cement grout. Each well will be completed at land surface with flush
grade steel manhole cover and a concrete pad. After installation, each well will be developed by
pumping until the well is clear and free of fine sediment.
\\c 1 ntO I \envwater\ W ASTE\PROPOSAL\2002\KeyWestlntAirpSARpro.doc
Fuel Tank Farm Site Assessment
Key West International Airport
September 24, 2002
Page 4
A licensed surveyor will survey the top of casing elevation for each well relative to the National
Geodetic Vertical Datum (NGVD). This data will be used in conjunction with depth to water
measurements to evaluate the groundwater flow direction.
After allowing the six shallow wells to equilibrate for a minimum of 72 hours, URS will collect
groundwater samples from each well in accordance with the DEP SOP. The samples will be
submitted to a state-certified laboratory for analysis for the Gasoline and Kerosene Analytical
Group parameters listed in Chapter 62-770, F AC, Table B. This list of parameters includes the
analysis for volatile organic compounds by EP A Method 8021, polynuclear aromatic
hydrocarbons by EPA Method 8310, TPH by the FL-PRO method and total lead. In addition, a
filtered sample will be collected and analyzed for dissolved lead, For Quality Assurance/Quality
Control (QAlQC), one equipment blank and one duplicate sample will be collected and analyzed
for the above-referenced parameters. In addition, one trip blank will be analyzed for volatile
organic compounds by EP A Method 8021. A standard turnaround time of 10 days will be
requested for results,
For the Phase III mobilization, up to three (3) additional shallow permanent monitor wells will
be installed to complete the evaluation of the horizontal extent of groundwater contamination. In
addition, one deep (25 feet) well will be installed in a downgradient location to evaluate the
vertical extent of groundwater impacts. The location of these wells will be based upon the
laboratory results of groundwater samples collected during the Phase II mobilization and
evaluation of the groundwater flow direction,
After allowing the Phase III shallow and deep wells to equilibrate for a minimum of 72 hours,
URS will collect groundwater samples from each new well in accordance with the DEP SOP,
The samples will be submitted to a state-certified laboratory for analysis for the Gasoline and
Kerosene Analytical Group parameters listed in Chapter 62-770, F AC, Table B. This list of
parameters includes the analysis for volatile organic compounds by EP A Method 8021,
polynuclear aromatic hydrocarbons by EP A Method 8310, TPH by the FL-PRO method and total
lead. In addition, a filtered sample will be collected and analyzed for dissolved lead. For
Quality Assurance/Quality Control (QAlQC), one equipment blank and one duplicate sample
will be collected and analyzed for the above-referenced parameters. In addition, one trip blank
will be analyzed for volatile organic compounds by EP A Method 8021. A standard turnaround
time of 10 days will be requested for results,
3.4 INVESTIGATION DERIVED WASTE
During well installation, development and sampling, investigation derived waste will be
generated in the form of drill cuttings and purge water. Drill cuttings and purge water will be
contained in FDOT -approved 55-gallon drums for disposal. One sample of the drill cuttings
will be collected for and analyzed for the pre-bum parameters for waste characterization and to
determine the appropriate method for disposal. Costs for the transportation and disposal will be
\ \c I ntO I \envwater\ W ASTE\PROPOSAL\2002\KeyW estIntAirpSARpro,doc
Fuel Tank Farm Site Assessment
Key West International Airport
September 24, 2002
Page 5
presented in a separate proposal. This proposal assumes that up to 32 drums will be required to
contain investigative derived waste.
3.5 POTABLE WELL SURVEY
URS will conduct a survey of potable public wells within 12 mile of the site and private wells
within J;4 mile of the property. The survey will be conducted by reviewing permits at the South
Florida Water Management District in Fort Myers, local and county health department files, and
by completing a driving survey, if needed, A door to door survey is not included in this scope of
work.
3.6 HYDROGEOLOGIC TESTING
URS will perform variable head slug tests by removing a known volume of water at four shallow
monitor wells. The water level recovery will be recorded using a Hermit Data Logger and
pressure transducers. The water level recovery versus time data will be used to evaluate the
permeability of the subsurface soils surrounding the well screens, The average permeability
values, along with the hydraulic gradient and an estimated porosity of the soils encountered at
the site will be used to evaluate the potential rate of shallow groundwater flow.
3.7 SITE ASSESSMENT REPORT
Upon completion of the tasks previously described, URS will incorporate the findings of this
investigation into a SAR. This report will include pertinent background information, a summary
of assessment activities, evaluation and discussion of the analytical results and data collected,
conclusions and recommendations for additional work, if warranted. The report will include
appropriate site maps, water elevation contour maps and contaminant maps. A draft report will
be submitted for review and comment. Following receipt of review comments, a final report will
be submitted. The final report will be signed and sealed by a professional geologist as required
by the FDEP,
4.0 SCHEDULE
URS is prepared to begin work at the site immediately after receipt of authorization. Scheduling
of fieldwork will depend on contractor availability. URS will mobilize to the site for Phase I
field activities within two weeks from authorization and providing written notification to the
FDEP. URS estimates that Phase I will require four field days to complete. Phase II will require
two field days to complete and will commence one week after completion of Phase I. The
laboratory results from Phase II will be available in two weeks from delivery. Phase III will
require three field days to complete and will commence within one week following receipt of
laboratory results from Phase II. Phase IV will require three field days to complete and will
commence within one week of completion of Phase III. The laboratory results for Phase IV will
\\c I ntO I \envwater\ W ASTE\PROPOSAL\2002\KeyWestIntAirpSARpro,doc
Fuel Tank Farm Site Assessment
Key West International Airport
September 24,2002
Page 6
be available within two weeks. A separate cost proposal for the transportation and disposal of
the investigative derived waste that will be contained in drums will be provided for authorization
following receipt of the laboratory results. Following receipt of this authorization, the drums
will be schedule to be removed within two weeks. The draft SAR will be prepared within three
weeks of receipt of all the laboratory results and waste disposal certificates. The final SAR will
be prepared within one week of receipt of comments from Key West International Airport.
Based upon this schedule, the final SAR will be submitted in 15 weeks from project initiation. If
additional work is required to evaluate the extent of groundwater and soil contamination, the
schedule will require modification,
5.0 FEE
URS proposes to perform the scope of work described herein on a time and material basis in
accordance with our master service agreement. On this basis, URS' fee for the above-described
Scope of Work is estimated not to exceed $45,000. This proposal assumes that no significant
underground obstructions will be encountered that will inhibit the collection of samples proposed
herein. The cost estimate is based upon a 2.8 multiplier on raw labor rates and 10% handling
charge on contractors (laboratory and surveying). No handling charge is included in the drilling
contractor fees. The following is a list of labor categories and approximate labor rates that are
anticipated on this project.
Senior Consultant/Geologist $119/hour
Certified Industrial Hygienist $ 95/hour
Project Geologist $ 74/hour
Staff Geologist $ 55/hour
CADD/drafting $ 63/hour
Clerical/support staff $ 49/hour
A breakdown of labor hours and expenses are presented in the attached cost table. Meetings are
not included in this cost proposal. At the request of Key West International Airport, URS will
attend meetings on a time and expense basis.
The cost estimate and terms described herein are valid for up to 30 days from the date of this
proposal. Any variations to the schedule, scope of work, or site description may require a
modification of the cost estimate. It is URS' understanding that the signatory contracting this
work, as the client, is authorized to enter into this agreement with URS.
\ \c IntO I \envwater\ W ASTE\PROPOSAL\2002\KeyW estlntAirpSARpro,doc